
Chủ đề axit - Lớp 9
Authored by Trần Thanh
Mathematics, English, Chemistry
9th Grade
Used 84+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho dung dịch axit sunfuric loãng tác dụng với muối natrisunfit (Na2SO3) sinh ra chất khí nào sau đây?
Oxi
Lưu huỳnh đioxit
Hiđro
Lưu huỳnh trioxxit
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Phản ứng giữa axit Clohidric và Natri hiđroxit là
phản ứng thế.
phản ứng trung hoà
phản ứng hoá hợp
phản ứng phân huỷ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quỳ tím chuyển đỏ khi cho vào dung dịch nào sau đây?
Nước vôi trong.
Axit sunfuric.
Natri hiđroxit.
Natriclorua
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cho các chất: CuO, Mg, Cu, Fe(OH)3. Chất nào tác dụng được với dung dịch axit clohiđric giải phóng khí hidro?
CuO
Mg
Cu
Fe(OH)3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Axit Sunfuric loãng tác dụng được với dãy chất nào sau đây?
CuO, Ba(OH)2, Ag.
CuO, Fe(OH)2, Cu.
FeO, Ba(OH)2, Cu.
CuO, Ba(OH)2, Mg.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức hoá học của axit Sunfurơ là
H2SO4
H2CO3
H2SO3
H3PO4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dùng thuốc thử nào sau đây để phân biệt hai dung dịch riêng biệt axit clohiđric và axit sunfuric loãng?
Dung dịch Bari clorua.
Dung dịch Natri hiđroxit.
Kim loại Cu.
Dung dịch Bạc nitrat
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